There is also https://www.elementscompiler.com/elements/default.aspx https://www.elementscompiler.com/elements/default.aspx which is a pretty good compiler and

There is also https://www.elementscompiler.com/elements/default.aspx https://www.elementscompiler.com/elements/default.aspx which is a pretty good compiler and webassembly is one of the compile targets.